Early childhood is a critical time in the development of all children, but Latino children may also face the added challenge of developing language and literacy skills in an entirely new language. To complicate matters, many early childhood teachers are generally unprepared to effectively educate children who are dual language learners (DLLs). Although these challenges are evident every day in classrooms across the United States, little is known about the effects of early care and education on DLLs and about how best to support teachers who are not prepared to work with this rapidly growing population.